1/4 Drip Line Irrigation Quick Disconnects

thingiverse

This is a set of couplers for 1/4 drip line irrigation systems. I needed a way to get my hanging baskets disconnected from my drip lines when storms approached or to change them out without removing the lines and stakes and destroying the plants. These are simple twist on - twist off couplers that connect to drip lines via hose barb. There are two inlet models, OR4 and OR5. Choose the one that is right for your application - the only difference is the O-ring size and level of fit. You will need the appropriate O-rings to complete the assembly for water tightness. OR4 is a 7/32" I.D. x 11/32" O.D. x 1/16" Section Rubber O-Ring (Papco number 304-004) OR5 is a 1/4" I.D. x 3/8" O.D. x 1/16" Section Rubber O-Ring (Papco number 304-005) I found the OR4 size to be an easier fit when mating the couplers together while still maintaining water tightness, so I personally use this one. OR5 provides a snug fit (almost too snug), so you may need to lubricate that O-ring before fitting the couplers. I had initial problems with a weak spot at the base of the hose barb, so I shortened it and added material - however be aware that this is the weak spot and may be prone to snapping. If you have a better engineering solution, feel free to make this better!